• U.S. Sen. Albert Gore, Sr. of Tennessee and Congressman George Fallon of Maryland introduced bills in Congress for the construction of the interstate system, which was enacted in 1956 as the “National System of Interstate and Defense Highways” — often called the Fallon-Gore Act.

• Interstate 65 at the Tennessee-Alabama line was the first section of interstate opened to traffic in Tennessee — on Nov. 15, 1958. Construction had started in May 1957 for the "Figure 8" interchange.

• That set the state on a course of building more than 1,100 miles of interstate in the years since.

• Interstate 40, which stretches 2,554.22 miles from Barstow, California to Wilmington, North Carolina, has more miles in the Volunteer State than in any of the other seven states its path includes (California, Arizona, New Mexico, Texas, Oklahoma, Arkansas, and North Carolina), with 455 miles traveling through 20 of Tennessee's 95 counties.

• Nashville is one of only four U.S. cities where six interstate legs converge within the city's boundaries: I-65 North and South, I-40 East and West, and I-24 East and West.

• Due to interstate accessibility to more than a third (37) of Tennessee’s 95 counties, Tennessee ranks sixth in the nation in cargo carried by trucks.